Objective-C 异常处理

#import <UIKit/UIKit.h>
#import "AppDelegate.h"

int main(int argc, char * argv[]) {

@try {
// 抛出一个自定义异常
@throw [NSException exceptionWithName:@"My Error" reason:nil userInfo:nil];
}
@catch (NSException *exception) {
// 处理异常
NSLog(@"%@",exception);
}
@finally {
// 运行
NSLog(@"run");
}

@autoreleasepool {
return UIApplicationMain(argc, argv, nil, NSStringFromClass([AppDelegate class]));
}
}